My mother prefers (ride) riding to (walk) walking.
2. Where did you (live) live when you were a child?
3. Lana’s family (watch) watches TV every night.
4. Would you like (have) having dinner at my house tonight?
5. Many years ago, most Vietnamese people (not have) didn't have TV sets.
6. Jenny doesn’t like (watch) watching sports. She prefers (take) taking part in them.
7. What are you (do) going to do tomorrow night? ~ I (see) am going to see a movie with my parents.
8. How about (go) going to the beach this afternoon?

we must be proud of our country.

=>we must pride our country on

UNIT 2: LIFE IN THE COUNTRISIDE                                      GRADE 8

I I: Find the word which has different sound in the underlined part in each line.

1.         A. twenty               B. happy                      C. by              D. early

2.         A. what                  B. why                        C. who            D. when

3.         A. books               B. stops                       C. opens         D. works

4.         A. wanted             B. needed                   C. decided      D. stopped

II: Choose the best answer A, B, C,  or D.

1. Nam enjoys …………… his homework in the morning.

A. doing                      B. to do                       C. am doing     D.  does

2.  My dad doesn’t mind…………… my mom from work every day.

            A. pick up                   B. picked up                C. picking up   D. picks up

3. Nam doesn’t like ………………. Soccer every day. 

A. play                        B. plays                       C. playing               D. played

4. Does she fancy …………… a book to the younger children?

            A.  reads                      B. reading              C. to read        D. read

5. My parents  enjoy …………… on Sundays.

            A. garden                    B. gardening    C.  gardened                D. gardens

6. They love ……………with their friends. 

A. eat out                     B. ate out             C. having eaten     D. eating out

7. I prefer …………… people.   

A. text             B.  texting                    C.  texted                     D.  texts

8. My father detests …………. play soccer in the morning

A. playing                   B.  played                    C.  to play                    D.  plays

III.Write the words in the correct boxes.

Exercise 3: Give the correct form of the verbs in brackets.

1.      My mother likes (cook) to cook/cooking when she is free.

2.    Do you fancy (go) going shopping with me this weekend?

3.    I hate (tell) telling/to tell lies because it’s very bad.

4.    Linda wants (learn) to learn Vietnamese because she is interested in (visit) visting Vietnam.

5.    People in my village love (play) playing/to play football very much.

6.    John detests (drink) drinking beer.

7.    I don’t mind (work) working hard because I am a hard worker.

8.    My brother enjoys (visit) visiting the zoo.

I.       Use the correct form of the word to complete the following sentences.

1.      There is a small bamboo forest at the entrance to the village. (enter)

2.      My older brother and my close friend are the same age. (old)

3.      The holiday was very dIsappointing, so they decided to leave soon. (disappoint)

4.      Since her arrival, the room has been full of laughter. (arrive)

5.      There is always a traffic jam here. The road needs widening. (wide)

c. \(16-x^2+2xy-y^2=16-\left(x^2-2xy+y^2\right)=4^2-\left(x-y\right)^2=\left(4-x+y\right)\left(4+x-y\right)\)

d. \(\left(x-1\right)^2-4\left(2x-3\right)^2=\left(5-3x\right)\left(5x-7\right)\)

e. \(x^3-3x^2+3x-1=\left(x-1\right)^3\)

f. \(x^2-7=\left(x-\sqrt{7}\right)\left(x+\sqrt{7}\right)\)

\(x^2+5=0\) vô nghiệm ấy

g. \(-x^2-5x-7=-\left(x^2+5x+7\right)=-\left[\left(x+\dfrac{5}{2}\right)^2+\dfrac{3}{2}\right]\le-\dfrac{3}{2}< 0\)

h. \(-4x^2+4x-5=-\left(4x^2-4x+5\right)=-\left[\left(2x-1\right)^2+4\right]\le-4< 0\)

i. \(12x-9x^2-5=-\left(9x^2-12x+5\right)=-\left[\left(3x-2\right)^2+1\right]\le-1< 0\)

k. \(2x-16x^2-3=-\left(16x^2-2x+3\right)=-\left[\left(4x-\dfrac{1}{4}\right)^2+\dfrac{47}{16}\right]\le-\dfrac{47}{16}< 0\)

m. \(-x^2+x-1=-\left(x^2-x+1\right)=-\left[\left(x-\dfrac{1}{2}\right)^2+\dfrac{3}{4}\right]\le-\dfrac{3}{4}< 0\)

n. \(3x-x^2-4=-\left(x^2-3x+4\right)=-\left[\left(x-\dfrac{3}{2}\right)^2+\dfrac{7}{4}\right]\le-\dfrac{7}{4}< 0\)

\(\dfrac{-2}{3\sqrt{11}}=\dfrac{-2\sqrt{11}}{33}\)

\(\dfrac{3}{\sqrt{7}+4}=\dfrac{3\left(\sqrt{7}-4\right)}{7-8}=12-3\sqrt{7}\)

\(\dfrac{\sqrt{5}+3}{\sqrt{5}-3}=\dfrac{\left(\sqrt{5}+3\right)^2}{5-9}=\dfrac{14+6\sqrt{5}}{-4}=-\dfrac{7+3\sqrt{5}}{2}\)

\(\dfrac{31}{\sqrt{47}}=\dfrac{31\sqrt{47}}{47}\)

\(\dfrac{\sqrt{5}-\sqrt{3}}{\sqrt{5}+\sqrt{3}}=\dfrac{\left(\sqrt{5}-\sqrt{3}\right)^2}{5-3}=\dfrac{8-2\sqrt{15}}{2}=4-\sqrt{15}\)

\(\dfrac{1}{3-2\sqrt{2}}+\dfrac{1}{3-\sqrt{3}}=\dfrac{3+2\sqrt{2}}{9-8}+\dfrac{3+\sqrt{3}}{9-3}=3+2\sqrt{2}+\dfrac{3+\sqrt{3}}{6}\)

\(\dfrac{\sqrt{7}-\sqrt{2}}{\sqrt{7}+\sqrt{2}}-\dfrac{\sqrt{7}+\sqrt{2}}{\sqrt{7}-\sqrt{2}}=\dfrac{\left(\sqrt{7}-\sqrt{2}\right)^2-\left(\sqrt{7}+\sqrt{2}\right)^2}{\left(\sqrt{7}+2\right)\left(\sqrt{7}-\sqrt{2}\right)}=\dfrac{4\sqrt{14}}{5}\)

\(\dfrac{2}{1+\sqrt{5}}+\dfrac{2}{1-\sqrt{5}}=\dfrac{2\left(1-\sqrt{5}\right)+2\left(1+\sqrt{5}\right)}{\left(1+\sqrt{5}\right)\left(1-\sqrt{5}\right)}=\dfrac{4}{-4}=-1\)

Mình nhầm đề, mình tưởng tìm GTNN